Gutting die for printing presses of the platen type



July26, 1949. w QCRQSSLEY 2,477,288 I I CUTTING DTE FOR PRINTING PRESSESOF THE PLATEN TYPE Filed Feb. 11, 1946 3 Sheets-Sheet 1 JNVENTOR M fl/Mma Cross A519 ATTORNEY J ly 26, 1949- w. o. CROSSLEY 2,477,288 I CUTTINGDI E FOR PRINTING PRESSES OF THE PLATEN TYPE Filed Feb 11, 1946 3Sheets-Sheet 2 INVENTOB VV/W/am 0 C/"oss/ey Filed Feb. 11, 1946 July 26,1949.

W. O. CROSSLEY CUTTING DIE FOR PRINTING PRESSES OF THE PLATEN TYPE 3Sheets-Sheet 3 INVENTOR. VV/W/am 0. 6f'055 /eg I v avg g,

ATTORNEY Patented July 26, 1949 CUTTING DIE FOR, PRINTING =BRESSES .OFDHE. PLATEN TYPE Williamz'O': Gi'osslemTTMedo, Ohio:

Application February 11, 1346,,Seri2iLNo.46,809-

This invention relates to a combination in a printingformor plate and. adie and'press ofthe platen type in which the inking. rollers. do notcontact-the cutting'or impressing die in the operation of the press,therebyavoiding 'cutting'of the inking rollers and also avoiding.inking'of. the die cuttingedge.

An object of the-invention is. togprovide in a machine of theclassindicated, anarrangement inwhich agreatnumber-of different dieimpressing elements-such as; for example, a cutting rule, perforating;scoring, or-creasing rule may be=readily applied to meet therequirements for die" wheninking, but whenthe-pressis operated -the-sameacts to print and'to effect a die impression-in one operation of thepress.

This invention, therefore, relatesto the positionofidie which -isoutsideof the course of ink roller travel and between the platen and thepress bed and separate and apart from the chase in whichithe usualconventional cutting die is now-locked up when -in-use.

The object of the invention is to--provide an improved cuttingdieadaptedto bemovably secured to the gripper arms of" aprinting press, wherebythe paper or cardboard to be operated upon may be die-cut simultaneouslywith the printing of the same without inking the cutting die and withoutdamage'to the inkingrollers.

Another object has to do with the method, of securing the componentoperationalparts of the cutting die to its flat sheet-metal base, whichmeans is obtained by, the use of, a suitable adhesive, byso1cleri11g,welding, brazing, or by, similar means; said means allowingfor extreme maneuverability inplacing into any desired positionthecutting rule pieces and other relatedoperational die parts, afterformingbyrbending, and mounting saidcutting die operational parts; uponits fiat sheet-metal base.

Still another object is the use of: auxiliary-operations suchasperforating, scoring, creasing, or embossing, Withdie-cutting andprinting, or combinations of two or more of these operationssimultaneously with printing Without inking the die form and withoutdamage to the inking rollers, but allowing the inking of the printingform, and with one impression. action of, the printing 2 press withoutthe use of specially prepared-imachined" parts.

Still another "object is' the savings'ingcostsusually incurred-whenordering the cutting die made outside the plant; wliichidiecannowbe-"mad'e' Within a printing plant by "anyone without previousexperience, thus-addingtothe profits-of the 'plant as well'as makingrushorderspossible;

Still another object of this inventionis; the savings in productioncosts f by the elimination of expensive; equipment generally used in dieconstruction; such'asa;jig saw, a'rule benderyand special rule cutter:Cutting'dies'made'by-"this improved method can be easilymade-byutilizing 'theregular slug cutter 'foundin all printingshops for'cuttihg the small special cutting rule; avise anda pair of-smal1*nosed*pliers can-be usedfor bending or forming the cutting rule; a; pair oftin shears for-cutting thedie-sheetemetar base upon which the cutting"die operational parts are secured as hereinafterset forth-and the diebase is secured *to the gripper" arms, as hereinafter described andspecifically illustrated.

Another object ofthe 4 invention is the accomplishment ofa -simple meansofmake-ready of the die cutting form= or cutting die. Since the cutting*die is readilyaccessible on the gripper arm; it. is" nolongennecess-ary to removethechase ankle-apply make -ready patches:behind the die block because the make-ready patches" can be :moreeasilyapplied; and better spotted in I the :correct places: by applyingpatches directly to the -r.ear:.sidesor bottom ofrthe cuttingdie on thedie sheetz-metalcbase. Thisdsfaster, more accurate andiw-ithzcarma kissfimpressionz is possible, thus adding life; t -Ithecutting; die .bykeeping the cut- 'ting..edge of; the die sharp-much longer.

- Still anotlren object-oi this invention is the possible: usegof;these;.cuttingidies in' the ordinary 1165: press, if: desiredpby tackingor 1 otherwise securing; to awood: block of? predetermined height,andrlocking; the block with thedie on it in a chase and.- operating;from the press bed as usual.

Stilhanothen-object -ofithis invention is the sim--pleemeanszemployed-ifor'firmly,butmovably securing thecutting die tothegripper arm by making useofthe-extendedportion of: the cutting diesheet-"metalrbase; This eliminates the use of specially.manufacturedparts requiring machine shop practice as well as the use ofskilled labor in; manufacturing these: parts, .thus reducing to aminimum thcsllse off materials as well as labor costs. It. makes.unnecessary. the many. sizes and variedtypes of.holders whichwould benecessary to,.hold.the E numerous sizes, and; shapesof tab cutters,punches, perforators, scoring and creasing rule forms as well as thevaried shapes and sizes of embossing dies, thus attaining desirablesimplification and a minimum of expense.

Further objects and advantages are within the scope of this inventionsuch as relate to the arrangement, operation, and fimction of therelated elements of the structure, to various details of constructionand to combinations of parts, elements per se, and to economics ofmanufacture and numerous other features as will be apparent from aconsideration of the specification and drawing of a form of theinventionywhich may be preferred, in which:

Figure I is a diagrammatic view showing the press open and illustratingthe position of my die;

Figure II is a similar view showing the press closing and the relativeposition of the inking rollers, die and platen;

. 'F'igure III is a View showing the press closed;

Figure IV is an enlarged horizontal cross sectional view with the pressclosed;

- Figure V is an enlarged perspective view with the die shown in myinvention;

Figure VI is a, detail partly in section of one means of supporting mydie;

Figure VII is a sectional view through the die and supporting plate;

- Figure VIII is a perspective view of a modification in which both theprinting and die operations are completed in one operation of the pressin one run of the work;

Figure IX is an enlarged isometric view showing the action of thearrangement of Figure VIII.

In one embodiment of my invention, I provide a die It carried by one ofthe grippers [2 of the press as shown in Figures IV, V, VI and VII,where I have shown a platen type press with a chase I5 carried in thepress bed 16, a pivoted platen I1, and the usual grippers l2 and I3.

One satisfactory die for carrying out my invention includes a carryingplate 20, bent in an offset manner as shown in Figure VI, to be suitablysecured as by split rivets (see Figure VII) as indicated at 22 to thegripper [2 on one end and carry at the other end, the actual cutting orimpressing rule 24 of the die itself, surrounding which is a resilient,releasing meansas a rubber work removing pad 26.

Instead of making the die ill of the entire thickness to extend from thebed of the press to the platen when the press is closed, in my inventionI use a suitable backing means 25 located on the bed and locked up inthe chase IS with the type 28 as indicated in Figure V. Then the diemember ID proper may be formed by using thin sheet metal piece 20referred to, and the cutting or impressing rule 24 is less than theheight of the type 28. This working member or cutting rule 24 issuitably secured to the metal piece or carrying plate 20. In anembodiment of my invention, the die is constructed upon or built up uponand attached to the thin flat sheet base 20 of sheet metal or othersuitable material by a bonding agent of suitable material which may besolder, and I also employ brazing, weld ing, or the use of glue or othersuitable adhesive, or any other form of bonding agent of suitablecharacter.

In the arrangement shown in Figure IV where the press is shown in closedposition, the parts are illustrated in detailed relation to each other,just having effected an impression or out upon the material being actedupon such as paper,

plate 3| at the top over the type 28 into their lower position. As thepress begins to close as shown in Figure II, the rollers 30 pass upwardover the type and on in Figure III, reach the top of the-ink plate 3|when the press becomes fully closed as in Figure III and also in FigureIV.

- In both of Figures I and II, it will be seen that when the rollers 39pass back and forth over the press bed on the type, the die I0 is alwaysspaced from the same. It is only when the rollers are above the chaseand platen that the die [0 comes in contact with the press backing inthe chase l5, and then the closing of the press causes the platen I! toeifect an impression or cutting action as shown in Figure III.

In using the die form with a printing form in the embodiment of myinvention shown in Figures I to VII, I cut stock double in most cases,though not always, and then look up printing form in one-half of thechase and blank backing material in the other half. I then place a pieceof protecting sheet metal beneath the tympan under the die to protectthe platen and make ready as usual. I proceed to print and cut all stockand reverse the stock and feed again. This gives a complete die cut andprinted job 2-up of the work and turn manner. As stated before, Iprepare the die form previously with an ejection means or material ofrubber, cork, or other resilient material which acts to free the stockbeing die-cut from the. cutting die after the impression.

Should the run be a short one and the ink not thoroughly dry when readyto reverse the sheet, then some glue must be put on the ejectionmaterial and a piece of coarse sandpaper or emery cloth stuck to it andlet dry. Then I pull .an impression and the die will cut through thesandpaper and you are ready to feed the second time. When dry, I thencut the sheet in two parts.

In the embodiment illustrated in Figures VIII and IX, I have shown meanswhereby the printing and die action on one single sheet is made at oneoperation, the printing and die operation both acting simultaneously sothat the work in this case is run only once through the press. Thus, incertain classes of work, as by way of example, printing a ticket with ahole and slot die cut in the same, I provide the type form in the chasewith an opening 35, slot 3 and "shape the ticket by cut away top corners38 and 39. In this case, the die 48 which may be carried by eithergripper arm [3 is shown in Figure IX, or it can be attached from top orbottom by suitable extension arms or metal strips. Here, the die 48 hasa cutting rule 45 shaped as indicated above and is secured to a metalcarrying plate 43 which in turn is riveted or otherwise suitablyattached to the gripper I3. The releasing rubber pad 45 can be made ofother material, such as cork, or metal spring, or of any suitablematerial to effect the release of stock after an operation.

In Figures VIII and IX, as the press is open when the inking occurs, therollers will not at any time contact the die or cutting rule 4!. As thepress closes for an impression, the grippers, of course, move toward thestock as the platen comes up. As the grippers move toward closedposition, the die 40 enters into the opening 35, slot 36, et cetera, andseats down into the base 25' of the type form 28. As the type form, etcetera, has been properly locked up in the chase and an impression ispulled on the tympan, then the die cutting form 49 is registered withthis impression thus the die 40 will be properly positioned in place.Then as the platen I! and type form 28 and die form 40 fully engage theticket" will be both printed upon the die cut as desired by the die 49in the one closing operation of the press. Upon release on opening ofthe press, the resilient pad 45 releases the ticket or work from the diesince the closing of the press has compressed the pad 45 in thisoperation as in the other embodiment of my invention described above.

What I claim is:

1. In a printing press having a gripper arm; a die adapted when thepress is on impression to operate as a cutting, scoring, perforating orcreasing rule, said die including a rule superimposed upOn and firmlysecured to a die carrying member by a suitable adhesive means in such amanner as to facilitate the proper positioning of the various actualoperational parts of the die proper to a predetermined position; saiddie carrying member having a portion extended beyond the limit of thedie proper to adjustably and firmly secure the die to the gripper arm,said die carrying member having holes in the extended portion thereofcooperating with receiving holes in the gripper arm and split rivetsinserted therethrough to clinch the die and die base firmly to thegripper arm.

2. In a printing press of the platen type which has a pivoted movableplaten, a stationary type receiving chase, a die base member carried bythe chase; a die cooperating with said base member when the press is onimpression, and means to support said die comprising a sheet metal plateupon which the operating element of the die is superimposed; saidsheet-metal base forming means for adjustably attaching the same to thegripper arm by an extended portion on said sheet-metal base extendingbeyond the die proper; said extended portion of the sheet metal platehaving openings therein cooperating with similar openings in the gripperarm and through which openings are arranged attachable and detachablemeans for securing said sheet metal base firmly to the gripper arm.

3. In a printing press of the bed and platen type wherein a gripper armis pivotally mounted for movement with said platen, a removable die unithaving a flat portion adapted to be attached to saidggripper arm, saidunit having a die supporting portion extending laterally from said fiatportion, said laterally extending portion having a rule removablyattached thereto and adapted to be brought into operative relation witha sheet held on said platen by said gripper arm.

WILLIAM O. CROSSLEY.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS

